The multi-span greenhouse is an economical greenhouse that is very popular among users for its beautiful arc shape and low cost. The curved roof is beautiful and elegant, and the line of sight is smooth. The structure uses a small amount of steel and has good thermal insulation performance. The manufacturing cost is relatively low and it is an economical greenhouse.
The multi-span greenhouse is an upgrade of the greenhouse. It is actually a super large greenhouse, or it can be understood as an expansion. Use scientific means, reasonable design, and excellent materials to connect the original independent single-room model greenhouses. Compared with traditional greenhouses, greenhouses and greenhouses in the form of continuous buildings have a brighter space utilization than traditional greenhouses, and their utilization area is much larger than traditional greenhouses.
How to dehumidify a multi-span greenhouse? Today I will talk to you about this topic.
1. Ventilation and dehumidification. Ventilation is a good way to reduce humidity. Ventilation must be carried out when the temperature is high, otherwise it will cause the indoor temperature of the multi-span greenhouse to drop. If the temperature drops too quickly during ventilation, close the vents in time to prevent the sudden drop in temperature from harming the vegetables.
2. Mulch covering. Covering with plastic film can reduce the evaporation of soil moisture and is an important measure to reduce indoor air humidity.
3. Raise temperature and lower humidity. This method can not only meet the temperature needs of vegetables, but also reduce the relative humidity of the air. When the plants grow to be resistant, water the closed shed to raise the temperature to about 30°C for 1 hour, and then ventilate and drain the moisture. It can be repeated once after 3-4 hours when the shed temperature is lower than 25℃.
4. Use thermal insulation curtain materials with good hygroscopicity. Insulation curtain materials with good moisture permeability and moisture absorption, such as non-woven fabrics, can prevent dew condensation on the surface of the greenhouse and prevent dew from falling on the plants, thereby reducing the air humidity of the multi-span greenhouse.
5. Natural moisture absorption. Materials such as straw, wheat straw, and quicklime can be used to spread between rows to absorb water vapor or fog to achieve the purpose of dehumidification.
